Merge pull request #20850 from github/redsun82/fix-change-notes

C#: add missing `*` to change note

Author: redsun82

csharp/ql/src/change-notes/2025-10-24-insecure-cookie-query-promote.md

@@ -1,4 +1,4 @@
 ---
 category: newQuery
 ---
-The `cs/web/cookie-secure-not-set` and `cs/web/cookie-httponly-not-set` queries have been promoted from experimental to the main query pack.
+* The `cs/web/cookie-secure-not-set` and `cs/web/cookie-httponly-not-set` queries have been promoted from experimental to the main query pack.